- Patients must have locally advanced unresectable disease not amenable to curative resection or extrapancreatic metastases; patients must have EITHER radiographically measurable disease (defined as at least one lesion that can be accurately measured in at least one dimension [longest diameter to be recorded] as >= 20 mm with conventional techniques or as >= 10 mm with spiral computed tomography [CT] scan) AND/OR a serum CA19-9 measurement > 2 x ULN